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Finding the Fourth Proportional to 65,890.26, 98,731.88 and 50,934

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Solution

The fourth proportional to 65,890.26, 98,731.88 and 50,934 is: 76,320.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,890.26 : 98,731.88 = 50,934 : x
  2. Step 2: Convert to fraction form
    65,890.26/98,731.88 = 50,934/x
  3. Step 3: Cross multiply
    65,890.26x = 98,731.88 × 50,934
  4. Step 4: Simplify right side
    65,890.26x = 5,028,809,575.92
  5. Step 5: Solve for x
    x = 5,028,809,575.92/65,890.26
  6. Step 6: Final answer
    x = 76,320.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.